Window-shade fixture.



.1. UNDERWOOD.

WINDOW SHADEFIXTURE.

APPLICATION FILED OCT. 22, l9l7.

Patented. May 21, 1918.

m w m r r A nrr THOMAS J. UNDERWOOD, OF KOKOMO, INDIANA.

i I WINDOW-SHADE FIXTURE.

Specification of Letters Patent.

Patented May 21, 1918.

Application filed October 22, 1917. Serial No. 197,782.

To all whom it may concern:

lie it known that I, THOMAS J. UNDER- woon, a citizen of the United States, residing at Kokomo. in the county of Howard and State of Indiana, have invented certain new and useful lmproven'ients in lVindow-Shade Fixtures, of which the following is a specification.

This invention relates to a window shade fixture of the springless type; and one of the objects of the invention consists in the provision of a window shade which a window shade may easily and readily be raised or lowered and held at the desired points within the mean prescribed limits of travel, without the use of springs for supplying the motive power for rotating the shade roller.

A further object of the invention consists in the provision of a window shade fixture of the above character which is simple in construction, efficient in operation and which is economical to manufacture.

I accomplish the above objects of the invention, together with such others as may appear from a perusal of the specification and claims, by means of the construction illustrated in the accompanying drawing, forming a part hereof, in which- Figure 1 is a fragmentary detail view of a shade roller, shade and its supporting fixture, embodying my invention. Fig. 2 is a side elevation of one of the supporting brackets in which the shade roller is omitted, from the line 2-2 in Fig. 1. Fig. 3 is a cross sectional view, on the line 8-3 in Fig. 2. Fig. 4 is a fragmentary detail view of the shade roller, showing'the disk for controlling the movement of the roller in operative position. Fig. 5 is an end elevation of the construction shown in Fig. 1.

Referring to the drawings, 10 represents the cylindrical shade roller to which a shade 11 is attached in any suitable manner. The roller 10 is provided in its ends with suitable t-runnions 12 which engage elongated slots 13 in supporting brackets 14, the latter being secured to the window casings by means of the screws 15. Supporting brackets 14 are provided with lateral extensions 17 which form housings for inclosing the weighted lever 18 and also a disk 19 arranged on the trunnions 12. Lever 18 is pivotally attached to the side wall of bracket 14: at 20, and is provided in its upper edge with a recess 21, the formation of recess 21 being such as to remove the adjacent edge of lever 18 from slot 13 when lever 18 is in its farther-most depressed position. See Fig. 2. Slot 13 in bracket 14L recedeson a slight angle from the horizontal rearwardly so that trunnion 12 will normally rest in the depressed end of said slot when roller 10 is at rest and the end of trunnion 12 is pre vented from being accidentally displaced from the depressed end of slot 13 by the adj acent edge of lever 18 resting against the front surface of the trunnion, as shown by means of the dotted line in Fig. 2. The elevating of the weighted free end of lever 18 from its lowest position, as shown by means of the full lines in Fig. 2, is induced when one of the lugs 23, extending laterally from the face of disk 19, engages a transverse ear 2 1 on lever 18. hen however roller 10 and shade 11 are operated through the medium of a tape 25 the initial action of said tape is to cause roller 10 and its trunnion 12 to move forward into the elevated end of slot 18, thereby forcing the weighted end of lever 18 downwardly and moving ear 21 farther away from the aXis of trunnion 12, at which time lugs 23 are moved in the op posite direction a sufficient distance to prevent lugs 23 from contacting ear 24k while the roller 10 is rotating. As soon as roller 10 comes to a state of rest trunnion 12 will immediately move to the lower end of slot 13 and thereby move lugs 28 into position to contact ear 241 and arrest further movement of roller 10. Roller 10 is rotated in one direction by pulling downwardly on tape 25, which results in unwinding said tape from trunnion 12. During this movement shade 11 is wound upon roller 10 and when roller 10 is released to allow shade 11 to pay out tape 25 will be wound upon trunnion 12. Tape 25 passes through a slot 26 in extension 17. and by means of a friction roller 27 wear on tape 25 is reduced. To prevent accidental displacement of tape 25 from slot 26 I provide an upwardly inclined passageway 28 which extends from slot 26 to the edge of extension 17.

While I have described my invention with more or less minuteness as regards details of construction and arrangement, and as being embodied in certain precise forms. I do not desire to be limited thereto unduly or any more than is pointed out in the claims. On the contrary, I contemplate all proper changes in form, construction and arrange ment, the omission of immaterial elements, and the substitution of equivalents as circumstances may suggest or necessity render expedient.

I claim:

1. A Window shade fixture comprising a roller, a spindle arranged in the end of said roller, lugs rotating With said spindle, a roller supporting bracket provided with an inclined slot adapted to receive the end of said spindle, a pivoted lever carried by said bracket, an ear on said lei er adapted to engage the lugs 011 the spindle with the spindle resting in the depressed end of the slot, and means for moving the spindle into the elevated end of the slot and for moving the ear out of the path of travel of said lugs.

Copies of this patent may be obtained for five cents each, by addressing the 2. A Window shade fixture comprising a roller for the WlIlClOW shade, a spindle arranged in the end of said roller, a disk carried by said spindle, lugs on said disk, a

roller supporting bracket provided with an THOMAS J. UNDERWOOD. [1,. 5.

Commissioner of Patents,

Washington, D. G. 

